George scored two tries at Twickenham Stadium as Sarries started their season with a bonus-point win.
"It was a very good performance," he told the league's official website. "We've been working hard all pre-season on our attacking shape.
"We've got to be happy with that performance - it's a platform and we can move on from that."
Saracens return to action next Saturday when they welcome Gloucester Rugby to the Allianz Park.