It is suggested that you take the shuttle bus Line 5 to reach its terminal at the Globelink Hotel firstly. The Canton Hotel is located about 1.5kms away to the north of the bus stop. So, you could hire a cab driving you there easily.

The infor of bus Line 5 could be found at https://www.travelchinaguide.com/cityguides/guangdong/guangzhou/air/shuttle-bus.htm