Being colder than Jupiter (Saturn is almost twice as far from the sun as the other giant planet of our system) the colorful clouds (just like Jupiter’s) are much deeper in Saturn’s atmosphere–where it’s warmer. That’s one reason why color images of Saturn seem so bland in the visible light spectrum. If we had ultraviolet eyes like many insects, we’d find this planet more visually interesting. But then Pentecost and Palm Sunday vestments would appear black to us.
There’s an interesting thought. What if aliens with different windows on the EM spectrum become Catholic? Would they gain an indult to replace liturgical red with yellow or ultraviolet in their liturgies? Or would they be stuck?