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