Put the graph paper and rulers away! Here are some links for how to create graphs that can easily be saved, printed, and embedded into reports.
Excel is an excellent tool that will allow you to quickly create a chart. Use Excel especially if you want to have variety of chart types--bar, pie, line, scatter, and more. Add all the standard chart features like titles and axis labels so that the chart looks professional and presentable.
It has been years since I've used a graphing calculator, and I found Desmos to be a great alternative to trying to remember how to graph on a graphing calculator. It's simplicity is not restricting though--it seems to have all the same functionality of a complex graphing calculator.