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