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