This graph is an antipodal 4-cover of $U_6(2)$ graph.
Number of vertices: | $2688$ |
Diameter: | $4$ |
Intersection array: | $\{176,135,36,1;1,12,135,176\}$ |
Spectrum: | $176^1 44^{168} 8^{440} (-4)^{1848} (-16)^{231}$ |
Automorphism group: | $2^2.U_6(2):S_3$ |
Distance-transitive: | Yes |
Antipodal |