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