<｜begin▁of▁sentence｜>### Instruction:
Given the Petersen graph, how can you generate and visualize layout positions for its nodes using the Graphviz 'dot' program through NetworkX?
### Response:
import networkx as nx
import matplotlib.pyplot as plt

# Create a graph using NetworkX
g = nx.petersen_graph()
# Create node positions using Graphviz layout and the 'dot' program
pos = nx.nx_agraph.graphviz_layout(g, prog='dot')

# Draw the graph using matplotlib
nx.draw(g, pos, with_labels=True)
plt.show()
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