With Instinctual Trauma Response (IRT) you will not visualize your past trauma.
With other trauma methods, you do.
Those trauma-focused psychotherapies with the strongest evidence that involve visualizing are:
Prolonged Exposure (PE)
Teaches you how to gain control by facing your negative feelings. It involves talking about your trauma with a provider and doing some of the things you have avoided since the trauma.
Cognitive Processing Therapy (CPT)
Teaches you to reframe negative thoughts about the trauma. It involves talking with your provider about your negative thoughts and doing short writing assignments.
Eye Movement Desensitization and Reprocessing (EMDR)
Helps you process and make sense of your trauma. It involves calling the trauma to mind while paying attention to a back-and-forth movement or sound (like a finger waving side to side, a light, or a tone).