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