If much of the soil fell away from the roots when you transplanted it, then I recommend that you remove at least the top third of the bush's height. Whenever a rose that is fully leafed out is transplanted in such a way that its roots are disturbed, the roots cannot absorb or deliver sufficient moisture to all of the leaves on the plant. By removing the top third of the canes and their leaves, it will put less demand on the roots. (It's better to have sufficient moisture going into the remaining leaves and canes, than insufficient moisture going to any leaves or canes.) Then deeply water the rose every other day for at least 10 days.
