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