I don't see anything but a divider between "Language" and "Notifications", and for me the only "face" anywhere on the "Timeline and Tagging" page is "Facebook".
Even on mobile the set of steps they published doesn't work. "More Settings" leads to a generic settings page with no "face" as well.
From other comments in the thread, it sounds like there are at least 2 different locations that they put the option. It's either region/country-specific, or an example of A/B testing, I suppose.
This is on the desktop website. Sounds like it's hidden deeper if you visit from a phone?