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