The POWr Facebook Feed is another great option for this. It shows your posts in a beautiful gallery: Facebook Feed An awesome bonus is that you can add other social feeds (Pinterest, Twitter, Pinterest, Instagram, YouTube, etc.) to the same gallery.
We have a tutorial for how you can add this plugin to a Squarespace site here: https://www.powr.io/tutorials/how-to-add-facebook-feed-plugin-to-your-squarespace-site