One vertex per element, one color per generator, with an edge from x to x·s.
(10,14)(11,12)(17,18)(19,25)(20,23)(21,26)(22,31)(24,28)(27,30)(29,32) involution — undirected(1,2)(3,6)(4,5)(7,8)(9,10,13,14)(11,16,12,15)(17,19,21,20)(18,23,26,25)(22,28,30,29)(24,31,32,27)(2,5)(6,8)(9,11,13,12)(10,15,14,16)(17,19,21,20)(18,24,26,32)(22,29,30,28)(23,31,25,27)(1,3,4,7)(2,6,5,8)(9,12,13,11)(10,15,14,16)(17,20,21,19)(18,25,26,23)(22,29,30,28)(24,27,32,31)(2,5)(6,8)(19,20)(23,25)(24,32)(28,29) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.