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