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