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)(11,13)(12,14)(15,16)(18,19)(21,29)(23,25)(27,32)(9,11)(10,13)(12,16)(14,15)(17,18,22,19)(20,23,28,25)(21,26,29,24)(27,31,32,30)(2,3)(10,12)(11,15)(17,19,22,18)(20,25,28,23)(21,26,29,24)(27,31,32,30)(1,3,4,2)(5,6)(7,8)(9,12,14,10)(11,16,15,13)(17,20,22,28)(18,23,19,25)(21,27,29,32)(24,30,26,31)(9,13,14,16)(10,15,12,11)(17,21,22,29)(18,24,19,26)(20,27,28,32)(23,30,25,31)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.