You can index the variables in the order you want, e.g.
> t = torch.Tensor(np.arange(12).reshape(4, 3))
> permute = [2, 1, 0]
> t[:, permute]
tensor([[  2.,   1.,   0.],
        [  5.,   4.,   3.],
        [  8.,   7.,   6.],
        [ 11.,  10.,   9.]])