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