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