That's my question: I don't know which way they're moving.
It depends on the decay mode. Through beta decay they usually go up (eg. Cs135 › Ba135) one spot in the periodic table (straight line in the diagram). Through alpha decay they go down as shown in the diagram. What the diagram represents is natural decay of Uranium which isn't "waste". The long lived fission products in the GP link are more or less of an issue.