Zedboard Eagle Library on Git Hub.
Here is a link to a Zedboard Eagle Library. It currently has the LPC FMC connector as well as the XADC connector to be used with a ribbon cable.
https://github.com/zynqgeek/Zedboard-Eagle-Library
This comes with not guarantee nor has it been tested, and is in no way affiliated with Zedboard.org, Avnet, or Xilinx.
Note: You can pull this down using git, or SVN (ref link: https://github.com/blog/626-announcing-svn-support).