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