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