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