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