Note: Based off video performance. Also, all C chords could be C/E chords as well.
Do whatever sounds better to you because I can't tell you what the correct way is.

C/E-332010
C  -x32010
F  -133211
G  -320003
Am -x02210
Em -022000


Intro:  C Csus4 C Csus4

Tab intro:
    (C)                   (Csus4)
E:-----------------------------------------------------|
B: -----------0------------------------0---------------|
G: -------1------1----------------1-------1------------|
D: -2---------------------3----------------------------|
A:  ----3-----------3----------3--------------3--------|
E: ----------------------------------------------------|

Verse I:
C          Am       F          C
Be Thou my Vision O Lord of my heart
G             C          F              Em
Naught be all else to me save that Thou art
F            Em         C         F
Thou my best thought by day or by night
Am        Em           F           C
Waking or sleeping Thy presence my light

Verse II:
C        Am           F           C
Riches I heed not nor man’s empty praise
G         C           F       Em
Thou mine inheritance now and always
F             Em    C          F
Thou and Thou only first in my heart
Am           Em        F             C
High King of heaven my Treasure Thou art