Determine whether the networks below are isomorphic

They meet the requirements of both having the same number of vertices.
They have the same number of edges
They both have 8 vertices of degree 3.
Knowing that my knowledge tells me they are isomorphic.
But what's the best way to find out?
EDIT;
matrix for both graphs:
A B C D E F G H
A: 1 1 1
B: 1 1 1
C: 1 1 1
D: 1 1 1
E: 1 1 1
F: 1 1 1
G: 1 1 1
H: 1 1 1
0 1 5 3 6 2 7 4
0: 1 1 1
1: 1 1 1
5: 1 1 1
3: 1 1 1
6: 1 1 1
2: 1 1 1
7: 1 1 1
4: 1 1 1
Correct?
You might be able to find an isomorphism.
The symmetry of the network on the left helps. All vertices are equivalent.
For example:
* let $a$ correspond to $0$.
* the neighbours of $a$ are $b,f,h$. They would correspond to $1,2,4$ in some order. Again, by the symmetry of the left-hand network, it doesn't matter which order. Let $b=1$,$f=2$,$h=4$.
* $d$ is adjacent to $b$ and $f$, so $d=3$
And so on.