I wrote a blog post about the steps I followed to get Cardano GraphQL up and running:
Getting Started
The project includes an example docker-compose.yml. However, before you start it is important that you understand the interdependencies between each of the project’s services.
For example, you need to sync the Cardano Node with the blockchain before you use Cardano DB Sync Extended to restore a snapshot (see: Cardano DB Sync rolling back to genesis).