There are lots of ideas for using Jelly Rolls on Pinterest. Like ArlaJo suggested, you could make a Friendship Braid, and if your 32 strips aren’t enough, you could intersperse them with solid colors:
https://www.craftsy.com/blog/2014/12...h-braid-quilt/
or add solid color columns between the columns:
https://www.pinterest.com/pin/448389...71304/?lp=true