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