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