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