It depends of what you want from the club, but people will come with different expectations. Some tips from my experience.
Try and get people to engage in the club and encourage them to take ownership otherwise you’ll need up picking up all the work.
Define a programme of activities that will keep people engaged and cover a variety of things from knowing how to use the camera, to editing in photoshop, to covering various aspects of photography techniques.
Try and get guest speakers as it always good to generate some interest.
Try and cater for all skill levels, which is a challenge.