m vertex_drawer_factory: a factory method that returns an
            L{AbstractVertexDrawer} instance bound to the given Matplotlib axes.
            The factory method must take three parameters: the axes and the
            palette to be used for drawing colored vertices, and the layout of
            the graph. The default vertex drawer is L{MatplotlibVertexDrawer}.
        @param edge_drawer_factory: a factory method that returns an
            L{AbstractEdgeDrawer} instance bound to a given Matplotlib