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