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