Orbital buffer using a white pad and some Girots BOSS correcting cream, pretty easy to use, after scuffs/scratch removal top with a red or gold pad with your favorite carnuba and it will shine like new. They make a FAST correcting cream and it will cut quicker and save time if doing a large area but for a bike I would stick with the regular correcting cream and take my time.
Many products and procedures to correct this but if your experience is at the lower end, this stuff will do it and it available at about any Pep Boys type stores or Amazon.
If you don't have a orbital buffer or don't feel comfortable any local quality detail company would be able to do this for you in a matter of minutes for a small charge.