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