Incidence matrix for IEEE-6bus system network

I want to create incidence matrix for IEEE-6bus system network.

G = graph([1 1 1 2 2 3 2 4], [2 4 5 3 4 5 6 6]);

I = full(incidence(G));

i got this output A=[ -1 -1 -1 0 0 0 0 0

1 0 0 -1 -1 -1 0 0

0 0 0 1 0 0 -1 0

0 1 0 0 1 0 0 -1

0 0 1 0 0 0 1 0

0 0 0 0 0 1 0 1]

this result is not correct.

the good result is in picture attached here. Can you help to get the right result?