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