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