One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,7)(5,8)(10,12)(14,16)(17,18,20,22)(19,23,24,21)(1,3,4,8)(2,5,7,6)(11,15)(14,16)(17,18,20,22)(19,21,24,23)(25,26,29,28)(27,31,32,30)(9,10,13,12)(11,14,15,16)(17,19)(18,21)(20,24)(22,23)(25,27,29,32)(26,30,28,31)(1,2)(3,5)(4,7)(6,8)(9,11)(10,14)(12,16)(13,15)(17,18)(19,21)(20,22)(23,24)(25,26,29,28)(27,30,32,31)(1,3)(2,6)(4,8)(5,7)(9,12,13,10)(11,16,15,14)(17,19)(18,21)(20,24)(22,23)(25,28,29,26)(27,31,32,30)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.