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