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