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