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