Some Cayley graphs with propagation time of at most two

In this paper the zero forcing number as well as propagation time of $Cay(G,\Omega),$ where $G$ is a finite group and $\Omega \subset G \setminus \lbrace 1 \rbrace$ is an inverse closed generator set of $G$ is studied. In particular, it is shown that the propagation time of $Cay(G,\Omega)$ is at most two for some special generators.