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