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