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