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