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