As soon as the insulin receptors are activated, the cell begins a process to degrade the insulin, in order to prevent the cell from the risk of taking in to much glucose, and causing you to have low blood glucose. If you still require the outtake of more glucose from the bloodstream, the beta cells will continue to detect this and send more insulin to the receptors, were it will bind and perform this whole process again, with 'new' insulin.
So, once the insulin receptors have been activated the membrane starts to bud off, creating a vesicle around the insulin receptor and the insulin attached to it. then, the contents inside the vesicle is acidified, and as the PH levels decrease , it creates an environment in witch the Insulin (a protein structure) denatures, and can no longer bind to the receptor, so is essentially useless. so without the insulin, the inter cellular portion of the receptor returns to its original shape and hence shits off the signal of the insulin, and Glucose stops being converted into Glycogen or Glycerol. (the reason the insulin receptor is encapsulated n a vesicle before it is acidified, is to prevent any damage to other components of the cell)