For posterity, here are the directions given to me by Gordon Torrie a local historian.
The easiest way to get to Storey's Cemetery from Meaford is to travel west on Highway 26 to Grey Road 112. Then south on Grey Road 112 to Oxmead. Continue south, now on Grey Road 12. Alternatively, you can take Nelson St. West (in Meaford) to Gardiner St., South on Gardiner St. to Grey Road 12. Then Grey Road 12 west to Oxmead. Turn south, still on Grey Road 12.Storey's Cemetery is on the west side of the road, approximately 10.3 km south of Highway 26 and 8.5 km south of Oxmead. See the attached map. Oxmead is now merely an intersection.
Some information about the cemetery which you may already know: Name: Storey's CemeteryOGS Cemetery Number: 2100County: Grey CountyTownship: St. VincentConcession: 9Lot: S½ Lot 2Assessment Roll Number: 421048000403400Civic address: Grey Rd 12.Directions On the west side of the road, south of Sideroad 4, near 137079 Grey Rd 12.Nearest place named on the Province of Ontario Official Road Map: Walters FallsLatitude: N44° 30' 58.8"Longtitude: W80° 38' 17.9"Datum: WGS84Height above sea level: 1081 feetNotes: The cemetery is well back from the road. There is a sign and entrance at the road.