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