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