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