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