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