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