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