i did not try it. but i checked this:

https://siamining.com/help

there are several miners that work. and i think that you can find a OSX version of one of these miners.

http://www.johnchapman.net/my-work/apps-and-software/ccminer/

http://www.spaceman.ca/cgminer/

https://github.com/nwoolls/xgminer-osx