There is so much to say. Maybe other deacons will contribute some details. One of the big differences that you will find in a deacon ordination is that just the bishop places hands on the candidate and calls down the Holy Spirit upon him. In the ordination to the priesthood, after the bishop places hands on the transitional deacon, all of the priests present do the same. Most of the priests from the diocese attend, thus there is a big crowd on the altar. The permanent deacon ordination signifies that the permanent deacon is not part of the brotherhood of the priests, but rather has been chosen by the bishop for a special ministry of service to the diocese.
May God bless you for your interest. Perhaps someday you may be able to attend an ordination or be part of one.
Deacon Tony SFO