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