The same pattern of colours was carried from 1684 to 1762, when the regiment was disbanded.
Unfortunately I have no 1757 illustration of these flags and the uniform. Basically the regiment had red cuffs, collar and waistcoat; until 1761 the coat had elaborate double vertical pockets.
[I can't help feeling that this is one flag where the usual French elegance fails; the colours make a horribly ugly and messy mix!]