Print on the side, in PETG and use double-sided tape (VHB or other) to mount it on the rice cooker. 

It might be easier to first coil up the cable and then fix the mount to the rice cooker so lengths match up.

Works for rice cookers with a circumference of 66cm (26inch) [20cm diameter]:

• QUIGG RK-2065 / Severin RK 2425 / KoRo “Mr. Rice Guy”
• Melissa RC10