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