Why not look on the file exchange? There are multiple tools there that claim to do Savitsky-Golay.
Even better, is to read the help/doc for smooth. It provides Savitsky-Golay as one option.
doc smooth
If you are asking for someone to write code for you, teaching you how to do Savistsky-Golay and providing complete code for it, that is arguably beyond the scope of Answers. (I for one won't do that.) Instead, you can find pseudo-code for it online. Then spend some time learning to do it in MATLAB from the algorithm.
