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