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