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