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