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