After leaving the Central School, Diuguid did street theatre and worked with the fringe group A Plum Line which rehearsed in the ballroom of an Eaton Square squat. From there, it was a short step to the recently formed Gay Sweatshop and, in 1976, a three-month tour of Jill Posner's coming-out play Any Woman Can, which provoked bomb threats. In 1979, she directed her last production with this company, The Dear Love of Comrades by Noël Greig, about the 19th-century socialist utopian, and early LGBT activist, Edward Carpenter. The following year, at her instigation, the first women's festival was held at the Action Space which trailblazed the future of lesbian theatre, such as Susan Griffin's Voices staged by Diuguid. She also formed the Women's Project Company and directed several other plays: Louise Page's Tissue, the first play about breast cancer; Noël Greig's Angels Descend On Paris, concerning the Nazi persecution of gays and Jews; Timberlake Wertenbaker's New Anatomies ; and Patterns, by her own company, Changing Women. Diuguid had a strong alliance with Clean Break, a women's theatre company formed by ex-prisoners, directing the plays The Easter Egg by Chris Tchaikovsky, a prison reformer, and Lin Coghlan's Apache Tears. Other major productions included Howard Brenton's Sore Throats ; Darrah Cloud's The Stick Wife, about the wives of three Ku Klux Klan members; and Request Programme, by Franz Xaver Kroetz with actress Eileen Nicholas, for which Diuguid won a best director award. Throughout the 1980s and 1990s, she travelled extensively in Australia, Brazil, Japan and Israel. Furthermore, she became a staff director to the English National Opera and also worked as an Associate Director at the Hampstead Theatre.
Later years
In 1999, Diuguid settled in South Africa and started an arts and drama group with male prisoners at the Leeuwkop Maximum Security Prison. "Doing work about people who are at the edge, is for me second nature," she said. The next year, having been diagnosed with breast cancer, she started a project in Alexandra township using dance, drama, art and movement to help empower and heal traumatised children. The name of the project was Voices, and the name of her company, "Dedel'ingoma". In 2002, she directed the techno-opera Earthdiving in Cape Town. Diuguid continued working until shortly before her death in 2003. Her companion of 17 years, South African filmmaker Melanie Chait, and their foster son Desmond, survived her. She left instructions to spread her cremated remains in England, South Africa and Kentucky. Diuguid was memorialized by a plaque in St Michael's and All Angels Church, Guiting Power, Gloucestershire, England, and with a cenotaph at the Ghent Cemetery in Carroll County, Kentucky.
