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