Here's two relevant questions I answered (or ghost-answered, in the former case) that may help answer your question, although centered around WWII and WWI, the general principles of tactics and employment for Cavalry essentially remain unchanged from the tail-end of the Early-Modern era, and reveals the adaptation to the greater levels of firepower seen on battlefields from the Post-Napoleonic era onwards.

"How Was Cavalry used during WWII?"

"Were British Dragoons...light or heavy cavalry? Was this idea....uniform across Europe?"

The latter question in particular touches on certain anachronisms in cavalry formations as we exited the Early-Modern era.

EDIT: A third answer, much closer to your desired time period to the question "How does a Commander screen his army?", in which I did my best to explain the employment of Cavalry, what types would be where in the strategic picture, and the general principles of employment therein.