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