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