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