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