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