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