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