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