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