Create a point for each of the areas you wish to graph. For example, if you wish to graph your town's main road, include a point for each corner and for each major store.
Draw connecting arrows between various points of the graph to show the direction one must travel to go from point A to point B, or point C to point D and so on. Illustrate the relationship by drawing lines from connecting points that show the direction traveled. For example, if one can travel from point A to point B, draw a line out of point A that ends with an arrowhead at point B. This will properly indicate that one can travel from point A to point B. If one can travel from point B to point A, draw a line beginning from B that ends with an arrow to point A.
Include as many connections as you see fit. You are not limited to a finite number of connections. Some points can connect to multiple other points.