One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,7,8)(17,18)(19,27)(20,21)(22,25)(23,26)(24,29)(28,30)(31,32)(2,5)(6,8)(9,10)(11,15)(12,14)(13,16)(17,19,22,29,23,30,21,31)(18,24,20,27,26,32,25,28)(1,3,4,7)(2,6,5,8)(9,11)(10,13)(12,16)(14,15)(17,20,22,26,23,25,21,18)(19,28,29,24,30,27,31,32)(11,16)(13,15)(17,21,23,22)(18,20,26,25)(19,29,30,31)(24,28,32,27)(10,14)(13,15)(19,30)(24,32)(27,28)(29,31) 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.