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