Can I compare multiple page traffic on a same graph in google analytics?

yes! Advance segments in google analytics allows you to compare traffic coming on multiple pages. Let’s suppose you want to compare traffic on three different individual pages.

For this you will create advance segments for each pages. This will help you filter data only for the pages you want and then compare data for given pages on different reports and dashboard.

If you are new to google analytics learn what are advanced segments and how to use.