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