Genymotion Desktop has not been designed to run in server systems. Also there is no headless mode: Genymotion Desktop requires full GPU acceleration and a GUI to render the device display.
For a full list of supported systems, please refer to What are Genymotion Desktop requirements?
As an alternative, we offer a special on-premise solution to run a Genymotion image on your local server(s). For detailed information (pricing, requirements, etc.) please visit our website or use this form to contact our sales department.