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Let $r>2$ and $\sigma\in(0,r-1)$ be integers. We require $t<2s$, where$t=2^{\sigma+1}-1$ and $s=2^{r-\sigma-1}$. Generalizing a known$\{K_4,T_{6,3}\}$-ultrahomogenous graph $G_3^1$, we find that a finite,connected, undirected, arc-transitive graph $G_r^\sigma$ exists each of whoseedges is shared by just two maximal subgraphs, namely a clique $X_0=K_{2s}$ anda $t$-partite regular-Tur\'an graph $X_1=T_{st,t}$ on $s$ vertices per part.Each copy $Y$ of $X_i$ ($i=0,1$) in $G_r^\sigma$ shares each edge with just onecopy of $X_{1-i}$ and all such copies of $X_{1-i}$ are pairwise distinct.Moreover, $G_r^\sigma$ is an edge-disjoint union of copies of $X_i$, for$i=0,1$. We prove that $G_r^\sigma$ is $\{K_{2s},T_{st,t}\}$-homogeneous if$t<2s$, and just $\{T_{st,t}\}$-homogeneous otherwise, meaning that there is anautomorphism of $G_r^\sigma$ between any two such copies of $X_i$ relating twopreselected arcs.

Homogeneous edge-disjoint $K_{2s}$ and $T_{st,t}$ unions