Hi @tbuenaflor, you're right in that there is no right or wrong way, what we do recommend though is consistency.  For example, we like to ensure that each workflow we build is branded using our company logo and colors in Comment tools at the top, with a description of the goal of the workflow beside it.  

Regarding the actual workflow, we have color coded containers for different components, so maybe one color specifically for Inputs and/or Outputs, and others for different functions based on the nature of the business (often with  company colors).

Finally, I recommend short descriptions for annotations (this tool does that), comments for groups of tools and an overall description of the workflow, and of course branding.  Hope this helps! 

Awesome @DataPrepChad !!! That makes sense, thanks for the outline and summary!