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