How do I actually get graphene?
Also I have no idea how to use cooling chambers, they don't do anything when you connect them or when you connect it's orange arrow on the target item.
You need to blow up honeycomb using a nuke to turn it into graphene. Nukes can't be automated using the press but they can be automated using rockets and silos.
The cryo generator need a logic component at its source to be active. You can put a logic switch where its orange arrow is and click on the switch to turn it on.