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