Here is a simpler version of the output.
These MOSFET solid state relays can drive your relays directly. Max rating is 60V, 500mA although I would only use them at about half that. By the way, they can also switch AC.
There is a resistor in series with the inputs to set the current.
Indicator LEDs run on 24 VDC as do the relays. I drew them as 24 VDC since that's the supply in your diagram. The circuit could be used for 12 VDC if you prefer.
Diodes across the relays to catch the turn off spike that might harm the MOSFETS.