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