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