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