Hi PRJS,
I think you should carefully read his terms & conditions of apptt. and accordingly design the format. There is no special format as such for a Director so long as he's an employee drawing salary like anybody else. There should be appropriate components if he's entitled to a share from the profits on certain specific terms and he is on the board of your firm like that. The attached format is for general use. If it suits your requirement, with modifications you are free to use it.