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