How to make networkx, pyplot graph legible?

Question

I have a Networkx / pyplot graph that graphs the network traffic. For some reason, all of the nodes are on top of each other:

Any idea what I can do to make this more legible? here is my code:

def draw_graph(ip_dict):

G = nx.Graph()

for key, value in ip_dict.items():
    G.add_edge(key[0],key[1], weight=value)
nx.draw_networkx(G)
plt.show()