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