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