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