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