Hi,
Russell's quite right. I can't be sure, but I imagine their initial equipment was probably Albatros D.Va or perhaps some OAW-built D.IIIs. Sadly I don't know much of the unit's early markings or aircraft.
However, by mid-to-late summer 1918 they definitely had OAW-built Fokker D.VIIs. By that time the unit marking was a checkerboard painted on the tailplane and elevators, in white and (probably) black. Pilot's personal markings in the form of colored fuselage bands or pictorial emblems were painted on the fuselage between the cockpit and the national insignia.
You can find photos of Jasta 60 D.VIIs, and nice color profiles, in Osprey's "Fokker D VII Aces of World War I, Volume 2" and also in Ray Rimell's "Fokker D.VII Anthology No. 3" from Albatros Productions

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Hope that helps,
Greg VanWyngarden