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