One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9,11,6)(4,7)(5,8)(10,15,16,13)(12,14)(17,18,21,27,23,24,30,31,22,26,29,32,19,28,20,25)(1,3,5,11)(2,6,8,9)(4,10,12,16)(7,13,14,15)(17,19,22,23)(18,24,26,28)(20,21,30,29)(25,32,31,27)(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(17,20,19,29,22,30,23,21)(18,25,28,32,26,31,24,27)(18,26)(24,28)(25,31)(27,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.