You will receive an Order of Suspension/Revocation from the officer. If you hold a valid California driver license, the officer will pick it up and send it to DMV. The Order of Suspension/Revocation serves as a temporary license which expires 30 days from its issue date. Then the suspension/revocation action goes into effect.
The temporary license does not allow you to drive if you do not have a valid California driver license or there is another driver license action in effect.