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