More mesh power! This diagram is much more confusing than the previous one, but also more correct. Each colour/stipple corresponds to the particular destination node of that colour. Each arrow indicates that if you're on a given node, you would traverse the arrow of that colour to (eventually) reach the target node of that colour. For example, follow the solid green arrows to eventually reach the solid green circle.
Interestingly, what we can finally see here is that the system has optimized every path down to at most two hops. That's better than I expected for such a large coverage area. But I can't say it's wrong.
ssh+2FA to all your machines, anywhere, without opening firewall ports.