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