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