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