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