For creating charts, we recommend Google Drawings, as it is included as part of G Suite. The best way to familiarize yourself with Drawings is to go to your Google Drive in Chrome, click the "New" button and select "Google Drawings". This will start a new drawing where you can insert shapes, lines, images, etc.
Additional solutions which you may want to explore include:
We do not have a campus license for these additional solutions, so an employee or department can choose the one that makes the most sense for them and get it. We recommend first making note of the features you need, and then check out each one. And of course compare the price. One product may have a good package price for several people.