Organize the graph into input, validation, transformation, review, and output sections. Use names that describe actions and label the data crossing each section. Place the common path where it is easy to trace and keep exception branches close to the step that can fail.
When a cluster has a distinct input and output, consider extracting it into a reusable component. Document why unusual branches exist and whether retries can repeat side effects. Periodically test a small sample after moving or grouping nodes; a cleaner diagram should not change behavior.
A workflow is readable when another person can find the first failure without tracing every connection.
Akousa