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