Take bus No.7 and 17 from Liao Hua and get off at Liaoyang No.1 Middle School. Then take the No.8 bus across the street, and you should get off at Caizhuang. (I'm not sure, you can ask the driver when you get on the bus, saying it's under the detection line, and almost the driver can tell you) Get off and walk about 50 meters!
If you have enough time, I suggest you get off at the station by bus from Liao Hua, and then get on the No.8 bus, so that you can have a seat when you get on the bus! Hehe ~ ~