OK, in your new pic if the bands on the diodes are facing right, the coil is wired correctly.
You should measure from ground to each coil lug 50-70 volts...whatever is correct, check the left flipper to verify.
Now if you connect a jumper from ground and quickly tap it on the coil lug with BLU/VIO wire (center lug), you should get a strong flip fire. Perform same test on left flipper to verify.
DO NOT leave the jumper connected for more than 1 second (just a quick tap).
Caution: it may emit a few sparks at contact, so don't have your face too close (wear eye protection).
NOTE: If this is the original coil that you have added the diode back, the other diode may be bad and in need of replacement.