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