Feathers,
The pairs of switches are next to each other. However, when the prime pumps go on, there is a caption to tell you that you have turned them on. When the transfer pumps are off/failed, there is a caption to tell you that too. The transfer pump captions are in the centre part of the display whilst the prime pump captions are "sided" to match their respective engine.
From this report, it appears that everything about the aircrafts systems worked exactly as it should.