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