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