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