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