You can use the small, somewhat firm, felt buffing wheels. Not the pointy ones. Depending on the depth of the scratches, use the wax bar type polishing compound. The main ones are Black Emery, Brown Tripoli, White Diamond, Red Rouge. Black---> Red; black being the most aggressive, Red the finest. I would start with White Diamond, go with the direction of the spinning wheel. (Like a car tire on the road, not a climb cut) use enough pressure to create heat to melt the compound. Use different wheels for different compounds. It splatters, but will shine it quite nicely. Hope this helps...
~W