StopToStop is a free website with bus timetables and live departures for the East Of England, built from the Department for Transport's official Bus Open Data.
There's a page for Thaxted showing every bus that serves Thaxted (7 routes), where each one goes, the stops, and live departures, always up to date as timetables change:
https://stoptostop.co.uk/buses/thaxted
Bus times from The Guildhall, Thaxted by StopToStop
Bus times from Church, Thaxted by StopToStop