How to present data in a paper in terms of style
The purpose of any style when presenting graphics should aim at making the information as easy to read and comprehend as possible. I do not think any journals would provide specific style recommendaions except provide information on, for example, the thinnest posible lines, smallest possible font sizes to be reproduced in printing, color models etc.

I think it is important to think about how you present data in any scientific or professional communication. It will be largely up to you to make decisions on the material you visualize. My recommendation is to look at the book The Visual Display Of Quantitative Information by Edward Tufte and then to learn by example. This book, in my opinion, like no other, provides a good basis for understanding graphic display of data. Look at what others do and critically evaluate how successful those attempts are.