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