I am unable to authorize Wolfram Cloud to use my Facebook account in the command above because "too many redirects occurred".
I was able to reproduce the problem and have brought it to the attention of the SocialMediaData's developers. Right now, I'm not quite sure what causes the issue or if there's a workaround.
Use ServiceConnect function. There's a lot of new changes in the facebook api. Looks like it doesn't allow data of friends of friends unless they have given access to wolfram connect. So, i believe FriendNetwork plot is going to be hard without access to data.