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