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