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