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