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