The complement of this graph is the distance-2 graph of the Moscow Soicher graph. This graph is the folded graph of the Meixner 2-cover of the $U_6(2)$ graph and the Meixner 4-cover of the $U_6(2)$ graph.

Number of vertices: | $672$ |

Diameter: | $2$ |

Intersection array: | $\{176,135;1,48\}$ |

Spectrum: | $176^1 8^{440} (-16)^{231}$ |

Automorphism group: | $\mathrm{P} \Gamma \mathrm{L}(6,2)\cong U_6(2):S_3$ |

Distance-transitive: | Yes |

Primitive |