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