One vertex per element, one color per generator, with an edge from x to x·s.
(10,13)(14,16)(17,18,24,28)(19,29,31,25)(20,23,21,26)(22,27,30,32)(1,2)(3,7)(4,5)(6,8)(17,19)(18,25)(20,27)(21,32)(22,23)(24,31)(26,30)(28,29) involution — undirected(2,5)(6,7)(9,10)(11,14)(12,13)(15,16)(17,20,24,21)(18,26,28,23)(19,27,31,32)(22,25,30,29)(2,5)(6,7)(11,15)(14,16)(17,21,24,20)(18,23,28,26)(19,27,31,32)(22,25,30,29)(1,2)(3,6)(4,5)(7,8)(9,11)(10,14)(12,15)(13,16)(17,22,24,30)(18,27,28,32)(19,23,31,26)(20,29,21,25)(1,3)(2,6)(4,8)(5,7)(9,10)(11,14)(12,13)(15,16)(17,23)(18,20)(19,30)(21,28)(22,31)(24,26)(25,32)(27,29) 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.