Note: a hand drawing is acceptable and often quicker to do

If the type of a component is not obvious from its name, include the type (drawCanvas is a Canvas, so it doesn't need to have it's type included. It is not obvious from the name p1 that it is a Panel, so you need to put that in.) Each container should have its layout manager specified. The order of the components in each container should be the order in which they were added, since the order is important information about the layout of the components in the GUI. 
              PolyWrapper (an Applet) (BorderLayout)
             /               |          
      Center/            West|       
           /                 |        
          /                  |           
   poly(Canvas subclass)   pan(Panel)(BorderLayout)
                             |
                       North |
                             |
                             |
                          side(Panel)(GridLayout)
                          /   \
                        /      \
                      /         \
                 4 Buttons    5 Labels