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