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