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