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