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