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