You can cancel a resume command while VMware Fusion is restoring the virtual machine state.

When you resume a suspended virtual machine, VMware Fusion displays two progress bars in order. The second bar has a cancel button. See Resume Progress Bar and Cancel Button..

Resume Progress Bar and Cancel Button.
The cancel button is an icon to the right of the Restoring virtual machine state progress bar.

Click the cancel button before the progress bar is 100 percent filled.