They can take several days to dig the hole to their satisfaction. Don't let her see you watching her while she is digging. It can make her stop and if it happens too often it can lead to eggbinding.
Once she is happy with the hole she will turn around bum down and lay the eggs....likely in the evening. She can take a while for this too and may even sleep in the hole overnight. She should fill in the hole after she lays then and tamp it down and return to the branches hungry and thirsty.
If things do not go this way...If she becomes lethargic, sits low in the cage or does anything else that is unusual please post about it ASAP.
Was she mated?
Good luck!