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