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