On automorphisms of a strongly regular graph $(245,64,18,16)$

It was proved that a strongly regular graph in which neighborhoods of vertices are pseudogeometric graphs for $GQ(3,5)$ has the parameters $(245,64,18,16)$. In this paper we found the possible orders and the structures of subgraphs of the fixed points of automorphisms of a strongly regular graph with parameters $(245,64,18,16)$.