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