I ran away from Tapu Lele-- Will it respawn?

I ran away from Tapu Lele in Pokemon Moon cause I didn't wanna fight it yet now the statue says nothing happens when I touch it. Will it re-spawn on it's own or do I have to reset to before the encounter?

Is it one per game if I accidentally kill it?

This site says that if you defeat it, you can rechallenge it by defeating the Elite Four.

If at some point you defeated it instead of catching it, you can re-challenge it by defeating the Elite Four.

Although you ran away, I assume you can do the same thing. This Forum says that if you ran away, you can defeat the Elite Four again to get a rematch as well.