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