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