Few examples
In breef you said that you want to see the logo in black and white version, that's why most of the pictures in this preview are black and white version. I made all sorts of variations with shadows and Stroke on the logo , for both black and white and the logo in blue, with blue logo on a white background, and white logo on a blue background . I did that for all profile pictures and for all cover images for every social network you asked for. For covers and profile pictures i incluced PSD file, with all separate layers so anything can be chaged easily but you probably you will not have to change anything since i already made every possible version for every profile image and cover and saved it as a .png file in the /social networks/ folder.