Manila Airport - NAIA is located along the border between Pasay City and Parañaque City in Metro Manila. It is easily reachable by car, public transport or taxi. Premium Bus Service is also an option going to Makati, then take BGC Bus going to event place (See Public Transit).
First, you need to get to the exact location of MRT Ayala Station. You can get there either by bus or by train. Second, go down to northbound lane of EDSA which is the lane opposite SM Makati. There is only one stair there. Get inside BGC Bus Terminal and buy ticket going to East Bus Route.