A time-saving trick is to make a figure or table that shows the results and makes clear the main variables in your study and, if possible, its design. You can present this visual aid while discussing your design. Your audience will thus be learning two things at once because they will see the results and the design at the same time. An alternative is to present an empty matrix that outlines the design and then add in the results when it is time to give them. A transparent overlay can make this type of presentation very elegant, but just having a second slide or poster of the matrix with the numbers added is fine.
Oral presentation is an art, a skill that everyone can master.
You will do your best if you adapt these pieces of advice to your own personal style. Both approaches can be effective. What is better for you depends on your own style. Remember that in giving a talk you are on stage. Keep the attention and interest of the audience.