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