With the biggest fleet of B748-8F around, it is not too hard to spot one in CX's color in HKG.
Early morning is definately a time to see a lot of Cathay aircraft sitting at the gates. Most depart during the 8:30-10am wave of Cathay departures.
*Cathay Pacific Cargo - B747-867F - B-LJH*
B-LJC arriving from Anchorage as Cathay 80D.