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