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