Number of vertices: | $27$ |

Diameter: | $2$ |

Intersection array: | $\{10,8;1,5\}$ |

Spectrum: | $10^1 1^{20} (-5)^6$ |

Automorphism group: | $\mathrm{PSp}(4,3):2$ |

Distance-transitive: | Yes |

Primitive |

- Adjacency matrix
- Adjacency matrix in GAP format
- Adjacency matrix in CSV format
- Graph in GRAPE format