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