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