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