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