You need to identify the correct death and get a copy of the certificate.
That will allow you to see where she died, and what her home address was (if different). Once you know those you can check the relevant parish church records if they have a graveyard that was open at the time, or those of any other denomination if appropriate. If you still don't find her then you look at cemeteries or other parishes in the area, working outwards from the home address.
You should also look at discovering where her husband/parents/other family members were buried to see if she is with them.