Scala-graph combined with a graph db

I am looking for a clean way to store different graphs - I was thinking of using neo4j or janus or any other available database, however I have not found datamodels/datastructures like on scala-graph - is there a way I can leverage rich datamodel of scala-graph and be able to store data?

At the first cut I was thinking of storing a graph instance in scala-graph using akka persistence, but i am not sure of how things would pan out. Any suggestions?