Cancel a subscription

The absence of a cancel button plus the presence of the option to resubscribe both indicate that the subscription is already cancelled.

Also see the following from How to cancel a subscription from Apple - Apple Support

If you don’t see Cancel, the subscription is already canceled and won't renew.

and

If you cancel a paid subscription, you can keep using the subscription until the next billing date.

It appears to already be cancelled or not set to renew at the end of the free week. As such there is nothing you need to do.

EDIT: Whoops, sorry, should have refreshed before posting.