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