Presets are located in: /Applications/Cubase 7.5.app/Contents/Presets
copy them to: Mackintosh HD/Users//Library/Preferences/Cubase 7.5/Presets
I was having hard times to locate that Library folder because I’m new to MAC, so if it is your case and you can’t see the Library folder then in Finder hold alt and point your cursor to “Go” in the upper menu and there you will see the folder 
Hope that helps