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