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