If your employer has the right to suspend you, and is suspending you in accordance with its policies, then the best course of action is to follow the administrative and disciplinary processes in place. Should you suspect your employer is acting in bad faith, or not following its own procedures, you should consult an employment lawyer to get advice about your rights.
If your employer does not have the right to suspend you, you should document the events and communications regarding the suspension, and get legal advice. You may be entitled to pursue a claim for constructive dismissal and seek compensation, but such claims must be brought strategically.