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