Since you asked for novelization proof, in the novel "Star Wars: Aftermath: Empire’s End" there is this:
Also, in this book Jar Jar Binks is alive and living in disgrace on some random planet. Probably to make sure people didn’t think he was Snoke. - Recent Star Wars Novels, Reviewed - Science Fiction & Fantasy Community Blog
From the actual book (all typos are correct per the book):
Mapo: Why don't they talk to you?
Jar Jar: "My no no sure...Mesa thinking it cause-o Jar Jar makin some uh-oh mistakens. Big mistakens. Der Gunga bosses banished me longo ago. - pg. 101
It was announced from a producer that Binks does not appear in the film, and since Snoke does, well they must not be the same person.
Jar Jar Binks, the goofy amphibious character who irritated many Star Wars fans in the 1999 film The Phantom Menace, will not appear in the new movie The Force Awakens, producer Kathleen Kennedy has confirmed.
“Jar Jar is definitely not in the movie,” she said to applause and cheers.
Also, JJ Abrams goes on record that Jar Jar is neither a super villain, nor a Sith Lord.
No, "The Force Awakens" does not feature Jar Jar Binks as a super-villain.
"Right, 'Jar Jar is really a Sith Lord,'" Abrams says with a grin. "I so wish I was smart enough to come up with that one. I'm not kidding. That was on Reddit, I think, and it's this very long and brilliant theory and I commend whoever wrote it – it's crazy well thought-out. And if you read it – well, it's a little like most conspiracy theories, where if they're well-written and well-considered, you start to get convinced."
OK, but on the record, can he confirm that Jar Jar is not a Sith Lord?
"He's not," Abrams says firmly. "As far as I know."