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