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