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