Regression with interaction (metric variable) in graphic

#1
Hey,
I did a regressionanalysis with the following variables: Predictor = dummy variable, dependent Variable = metric, moderator variable = metric
I know wanna show my results in a figure.
The interaction should be shown by three regression lines. One for moderator = Mean (0), one for moderator = -1 SD and one for moderator = + 1 SD.

How can I do this in R?

Thanks for your help

Steffi