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