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