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