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