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 |