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