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