<｜begin▁of▁sentence｜>### Instruction:
Given a famous 'petersen' undirected graph, can you use MatplotlibVertexDrawer in igraph with matplotlib to visualize the vertices of the graph on a Kamada-Kawai layout?
### Response:
import igraph as ig
from igraph.drawing import MatplotlibVertexDrawer
import matplotlib.pyplot as plt

# Load a graph
g = ig.Graph.Famous('petersen')
layout = g.layout('kamada_kawai')  # Lay out the graph

# Create a plot with matplotlib
fig, ax = plt.subplots()

# Initialize the MatplotlibVertexDrawer
vertex_drawer = MatplotlibVertexDrawer(ax=ax, palette=None, layout=layout)

# Draw each vertex
for v in g.vs:
    vertex_drawer.draw(v)

plt.show()
<|EOT|>
