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