the 1 isometry classes of irreducible [7,2,6]_9 codes are:

code no       1:
================
1 1 1 1 1 2 0
5 4 3 2 1 0 2
the automorphism group has order 12
and is strongly generated by the following 3 elements:
(
5 0 0 0 0 
0 0 5 0 0 
0 5 0 0 0 
0 0 0 0 5 
0 0 0 5 0 
, 1
, 
0 1 0 0 0 
1 0 0 0 0 
0 0 1 0 0 
2 2 2 2 2 
0 0 0 0 1 
, 1
, 
6 6 6 6 6 
0 0 0 0 3 
0 0 0 3 0 
0 0 3 0 0 
0 3 0 0 0 
, 0
)
acting on the columns of the generator matrix as follows (in order):
(2, 3)(4, 5), 
(1, 2)(4, 6), 
(1, 6)(2, 5)(3, 4)
orbits: { 1, 2, 6, 3, 5, 4 }, { 7 }