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