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