chords in the key of e are I E (0 2 2 1 0 0), ii F#m (2 4 4 2 2 2), iii G#m (4 6 6 4 4 4), IV A (x 0 2 2 2 0), V B (x 2 4 4 4 2), vi C#m (x 4 6 6 5 4) and vii° D#dim (x x 1 2 4 2).
One fingering each
E major charts put string 6, low E, on the left and string 1, high E, on the right. Dot numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × is muted, ○ is open, and the letters under the strings are the notes you hear.
E major has 4 barre shapes out of 7: F#m, G#m, B and C#m. D#dim is not a barre and has no open string.
The I chord on piano is E3, G#3 and B3, MIDI 52, 56 and 59. The same pitch classes are E.
One octave from C. Gold keys are the E pitch classes, not a specific octave.
How this key sits on guitar
The E chart plays the sixth string, the second string and the first string open.
The D#dim chart mutes the sixth string and the fifth string, frets the other four, uses no open string, and is not a barre.
E minor is not this set
E minor is a different set: Em, F#dim, G, Am, Bm, C and D. Those chords are not the E major chords on this page. People searching chords in e minor key want that set. E minor is the relative minor of G major, and the same seven chords are charted on chords in the key of g.
Questions
Are chords in e minor key the same as chords in e major key?
No. Chords in e major key, and chords in the key of e guitar, are the charts on this page. Chords in e minor key are the other set in the section above, and that section says they are not the E major chords.