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