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