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