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