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