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