Here ya go! Here's the GABC code for use with Gregorio (engraving software):

%%
(c4)SU(g)sci(hi)tá(i)bo(i) mi(i)hi(h) (,)
sa(i)cer(i)dó(k)tem(j) fi(j)dé(ih)lem,(j.) *(;z)
qui(i) jux(i)ta(i) cor(i) me(i)um(i) et(i) á(i)ni(i)mam(i) me(j)am(h) (z) fá(j)ci(j)et:(ih..) (::)
ET(i) æ(i)di(i)fi(i)cá(i)bo(i) e(i)i(i) do(k)mum(jz) fi(j)dé(ih)lem,(j.) *(,)
et(i) am(i)bu(i)lá(i)bit(i) co(i)ram(i) Chri(i)sto(i) me(i)o(i) cunc(j)tis(h) di(h)é(j)bus.(ih..) (::)

[Note this has been updated per the correction below.]

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