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