Depending on the type of question, Google Forms could create a chart automatically for you and display it in the "Summary of responses".
From View and manage form responses
View the summary of responses
To quickly see how many users filled out a form and what their
responses are, you can check out the response summary. From your form,
click the Responses menu and select Summary of responses.
If you'd like respondents to be able to see this same summary of
responses, check the box in the "Confirmation page" section of your
form labeled Publish and show a link to the results of this form. When
this box is checked, users who respond to your form will see a “See
previous results” link, which they can click to view the response
The alternative is to create your own chart and publish it.
- Create a chart
- Publish the chart as a web page
- Share the web page