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