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