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)(19,25)(20,28)(21,27)(22,23)(24,29)(26,30)(31,32)(1,2)(3,7)(4,5)(6,8)(18,23)(20,29)(21,25)(26,32) involution — undirected(2,5)(6,7)(9,11,14,13)(10,15,12,16)(17,19,22,27)(18,21,23,25)(20,26,29,32)(24,30,28,31)(2,5)(6,7)(9,11,14,13)(10,16,12,15)(17,20)(18,24)(19,26)(21,30)(22,29)(23,28)(25,31)(27,32)(1,2)(3,6)(4,5)(7,8)(9,12,14,10)(11,16,13,15)(17,19)(18,25)(20,26)(21,23)(22,27)(24,31)(28,30)(29,32)(1,3)(2,6)(4,8)(5,7)(9,13,14,11)(10,16,12,15)(17,21,22,25)(18,19,23,27)(20,30,29,31)(24,26,28,32)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.