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