As troy_s mentioned in his answer about CDL node, Saturation is part of ASC CDL, but blender doesn't incorporate it in the CDL node. And
to control saturation on scene referred data a custom node group needs to be created to operate after the CDL node.
So, I searched about it on internet and found that:
I created this nodes and they seems work, but I'm not sure about math, is it the right way to control saturation?