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