You can! If you navigate to Events in your form-level control panel, you'll see the Copy URL button under each of your events.
Clicking the button will copy the event link to your clipboard. The link will take supporters directly to the event registration page, rather than to the main donation page.
Just paste the URL wherever you'd like, such as into an email!
Please note: If you'd like to change the URL for your event, you can customize it in the event's Advanced Settings.