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