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