This is the antipodal 3-cover of the Zara graph on 126 vertices, (a.k.a. the $\mathrm{NO}_6^-(3)$ graph).
| Number of vertices: | $378$ |
| Diameter: | $4$ |
| Intersection array: | $\{45,32,12,1;1,6,32,45\}$ |
| Spectrum: | $45^1 15^{42} 3^{90} (-3)^{210} (-9)^{35}$ |
| Automorphism group: | $3.\mathrm{U}_4(3):2^2$ |
| Distance-transitive: | Yes |
| Antipodal |