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