Plot a Dictionary of Dataframes

I have a dictionary of dataframes (Di):

Di = {}
groups = [2,3]
for grp in groups:
    df = pd.DataFrame({'A' : (grp*2, grp*3, grp*4),
                       'B' : (grp*4, grp*5, grp*2)})
    Di[grp] = df

For each df in Di, I would like to plot A against B in a single graph. I tried:

for grp in groups:
    ax1 = Di[grp].plot(x='A', y='B')

But that gave me two graphs:

How do I get them both in the same graph please?

Answer

You should print on a same ax:

fig, ax = plt.subplots(figsize=(5,8))

for grp in groups:
    Di[grp].plot(x='A', y='B',ax=ax)