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