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)(11,16)(12,23)(13,22)(14,19)(15,21)(17,18)(20,24) involution — undirected(2,5)(6,8)(9,11)(10,16)(12,24)(13,19)(14,22)(15,18)(17,21)(20,23) involution — undirected(1,3,4,7)(2,6,5,8)(9,12,24,11,15,22,14,18)(10,17,19,13,21,16,20,23)(9,13,24,16,15,23,14,17)(10,18,19,12,21,11,20,22)(2,5)(6,8)(9,14,15,24)(10,19,21,20)(11,22,18,12)(13,17,23,16)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.