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