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