I would like to gift this photo album that serves as commemoration of high school enrollment.
ご質問ありがとうございます。
この場合「高校[入学](https://eikaiwa.dmm.com/uknow/questions/38871/)の記念にこのフォトアルバムを贈ります」と言いたいなら、英語で「I would like to gift this photo album that serves as commemoration of high school enrollment.」と言えます。
ご参考になれば幸いです。