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