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