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