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