The conference will take place in Laboral Ciudad de la Cultura. It is a big building so, when you arrive, please, follow the signs (there will be people from the organization at the entrance of the building to help you out).
There are three bus lines that go there: 1, 2 and 18. The price of a bus ticket is 1,25 € and you can buy it on the bus.
You may download the bus routes and timetables (in Spanish) below.