Is the bus in the top?
No, the bus is in the bottom of the image.
    src        edge_attr  dst
0     0   to the left of   14
1     0  to the right of    2
2     1   to the left of    7
3     1  to the right of    6
4     1   to the left of   12
..  ...              ...  ...
69   18               at    4
70   18   to the left of    2
71   18   to the left of    6
72   18   to the left of    3
73   18   to the left of   15

[74 rows x 3 columns]