Best way to get to Novotel Beijing Sanyuan Hotel at 7:30 in the morning

I need to be at Novotel Sanyuan Hotel at 7:30 in the morning. I am arriving at PEK at 5am. Whats the best way to get there, by using the airport express train and get off Sanyuanqiao or there is another easier way?

The reason I am asking is because the first train is at 6:30, I am not sure that I will make it on time.

Thank you in advance