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