Create an electrical engineering diagram - Visio Use Visio to create electrical engineering diagrams, including basic electrical, circuits and logic, systems, and more. Create an electrical engineering diagram. Drag electrical component shapes onto the drawing page. Shapes can have data. Video: Create a diagram from a template - Visio When you need ideas for your diagram or you don’t know where to start, begin with a Visio template. Visio provides dozens of built-in templates and thousands of shapes that you can use to create flowcharts, org charts, network diagrams, and more.