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