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