You will need to locate the virtual system's IP address. Locate it by navigating to the Systems ⇒ Virtual Systems tab and clicking on the virtual system's profile name.

On the virtual system's profile page, you'll find the IP address in the left-hand informational column in the IP Address field.

Connect to the IP address by using ssh as root, using the password you set for the virtual system in the kickstart profile you created for it earlier.