First, you need to have TWRP installed. For that, I used Flashify from the Play Store so the recovery could be installed directly from the phone.
You may need to enable root in CyanogenMod first. To do that, tap build number 5 times under settings > status and set root access to "apps".
Next, search for your device on this link and download the latest .img version. That file must be loaded into Flashify so the recovery can be installed. After installation, reboot the phone immediately.
After rebooting, download the latest zip version from this link and use Flashify to install it through recovery. Once that is done, Xposed itself will be installed. The only remaining step is to install the apk attached to the first post in this thread.
Done. Now you only need to open the apk and go to modules to install them. Keep in mind that the phone has to be restarted after installing and enabling each module.