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