Choose the Graph menu item from the View pull-down menu to
  graphically display the Graph query results in graph format.  A graph
  shows the nodes (routines) and arcs (call references) for the current
  query, but suppresses all redundant information.  A graph displays
  the current query in the most concise manner.

  For example, routine C may be called from the first level by routine
  A and from the second level by routine B.  The graph of this Graph
  query will show routie C once, with arcs to it from routine A at the
  first level and routine B at the second level.