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