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