How to transport fresh ravioli to office potluck?
I take the question to mean how you can best preserve the fresh-made texture with microwaving?

I would make, cool and store ravioli in single layers on parchment/waxpaper in a container for transport. Separately,  the sauce transported in largest microve-safe container that will fit in office micowave. 
Heat sauce to boiling then gently add in ravioli and continue to reheat on defrost if stirring would damage ravioli, or higher setting if you  can stir halfway through time.