the 1 isometry classes of irreducible [8,3,5]_3 codes are:

code no       1:
================
1 1 1 1 1 2 0 0
2 2 1 1 0 0 2 0
2 1 2 0 1 0 0 2
the automorphism group has order 48
and is strongly generated by the following 5 elements:
(
1 0 0 0 0 
0 0 1 0 0 
0 1 0 0 0 
0 0 0 0 1 
0 0 0 1 0 
, 
2 0 0 0 0 
0 0 0 1 0 
2 2 1 1 0 
0 1 0 0 0 
1 2 1 0 2 
, 
0 2 0 0 0 
2 0 0 0 0 
0 0 0 0 2 
1 1 1 1 1 
0 0 2 0 0 
, 
2 2 2 2 2 
0 0 0 0 1 
0 0 0 1 0 
0 0 1 0 0 
0 1 0 0 0 
, 
1 2 1 0 2 
1 1 1 1 1 
0 0 0 1 0 
2 0 0 0 0 
0 1 0 0 0 
)
acting on the columns of the generator matrix as follows (in order):
(2, 3)(4, 5)(7, 8), 
(2, 4)(3, 7)(5, 8), 
(1, 2)(3, 5)(4, 6), 
(1, 6)(2, 5)(3, 4), 
(1, 4, 3, 7, 6, 2, 5, 8)
orbits: { 1, 2, 6, 8, 3, 4, 5, 7 }