This is the complement of the NU6(2) graph. This graph is the folded graph of the Meixner 2-cover of the U6(2) graph and the Meixner 4-cover of the U6(2) graph.
| Number of vertices: | 672 |
| Diameter: | 2 |
| Intersection array: | {176,135;1,48} |
| Spectrum: | 17618440(−16)231 |
| Automorphism group: | PΓL(6,2)≅U6(2):S3 |
| Distance-transitive: | Yes |
| Primitive |