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