There's no hard and fast rule for twisting directions. Many coaches have a preference based on which way the gymnast does a round off or other skills, but ultimately there's no fool-proof method for determining which direction is best.
What makes you think your gymnast is learning to twist the wrong way?
I learned to twist righty when I was younger, but I can successfully twist a double full both directions. I learned to twist to the left last summer, when I was 20 years old. For awhile I felt that I might have been better at twisting had I learned lefty, but now both sides feel equally as comfortable. Perhaps your daughter is like that too, and could be successful on both sides.