Share confidential client data? Even where my NDA has expired, I would never do so.
Like any research, presenting can come in many formats including the traditional poster or paper. But I'd say 80% of the client research I have conducted was presented in PowerPoint. Hit the usual elements; objective, method, results, conclusions and recommendations, and your job is done.
If you want to know how to effectively communicate the objective, method, results, conclusions and recommendations, I would recommend learning about graphic design as that is their primary objective.