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