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