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