If the OP means that God "transcends" human biological categories of gender, then yes I'd agree.
But if they mean "trans" as in like a human transperson that was born with a neurotype that is at variance with their chromosomal and phenotypic sex at birth, and this person correspondingly identifies as/undergoes hormonal therapy and surgery to "transition" to the gender they innately identify as, then "no" because God is divine in essence and not human. God is not in essence male, female, intersex or trans. Even "gender non-binary" wouldn't fit as its a human label and limitation.
The Fourth Lateran Council in 1215 stated quite firmly: "there exists a certain Supreme Reality, incomprehensible and ineffable...eternal and immeasurable, almighty, unchangeable....absolutely simple essence...one principle of all things, creator of all things invisible and visible...This reality neither begets nor is begotten nor proceeds."
God is genderless in essence: the divine being does not 'beget' as men do in fathering children (save by analogy, as in the Christian theological 'image' of God the Father and Jesus the Son, which is not meant to be literally understood in a biological fashion) or get pregnant as mothers do, and this truism is strictly doctrinal, not only in Catholicism but in all forms of Abrahamic theism. Thus the Qur'an informs us, most succinctly and poetically, in Surah Al-Ikhlas: "Say, He is Allah, [who is] One, Allah, the Eternal Refuge. He neither begets nor is born, Nor is there to Him any equivalent."
You cannot compare God as It is in Itself to anything created, that is make an equivalence.