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