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