Use case or problem
I see the Graph and the File Navigation as Analogous tools which give different perspectives. Given that isn’t is worthwhile to have a “reveal file in the Global graph” feature along the lines of Reveal file in Navigation?
Proposed solution
Perhaps the node in the global graph could highlight momentarily like how tag search results are highlighted.
Current workaround (optional)
Local Graph
manually zooming and scrolling global graph and relying on colour groups