The MAX7219 & MAX7221 LED driver chips are designed for common cathode displays and not really suitable for common anode.
From the first paragraph in the datasheet...
The MAX7219/MAX7221 are compact, serial input/out-
put common-cathode display drivers that interface
microprocessors (µPs) to 7-segment numeric LED dis-
plays of up to 8 digits, bar-graph displays, or 64 indi-
vidual LEDs.
It would be a lot simpler to buy a common cathode LED module.