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