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