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