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