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