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