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