Is the bus on the right?
No, the bus is on the left of the image.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of    6
2     1  to the right of   11
3     1   to the left of    7
4     4   to the left of   12
5     5   to the left of   14
6     5   to the left of   17
7     6  to the right of    7
8     6  to the right of    1
9     7   to the left of    6
10    7  to the right of    1
11    7  to the right of   11
12    9   to the left of   16
13    9  to the right of   19
14    9  to the right of   15
15   10  to the right of   18
16   11   to the left of    1
17   11  to the right of   18
18   11   to the left of    7
19   12  to the right of    0
20   12  to the right of   18
21   12  to the right of    4
22   13  to the right of   18
23   14  to the right of   18
24   14  to the right of    5
25   15   to the left of    9
26   15  to the right of   18
27   16  to the right of    9
28   16  to the right of   19
29   17  to the right of   18
30   17  to the right of    5
31   18   to the left of   10
32   18   to the left of   11
33   18   to the left of   14
34   18   to the left of   17
35   18   to the left of   12
36   18   to the left of   13
37   18   to the left of   15
38   19   to the left of    9
39   19   to the left of   16