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)(19,24)(20,23)(21,25)(22,26)(27,29)(28,31)(30,32)(1,2,5,4)(3,7,8,6)(9,11,12,15)(10,13,14,16)(17,19)(18,20)(21,27)(22,23)(24,26)(25,28)(29,32)(30,31)(1,3,5,8)(2,6,4,7)(9,10)(11,13)(12,14)(15,16)(17,20,22,24)(18,23,26,19)(21,29,30,28)(25,27,32,31)(3,8)(6,7)(17,20)(18,19)(21,28)(22,24)(23,26)(25,27)(29,30)(31,32) involution — undirected(1,3)(2,7)(4,6)(5,8)(9,11)(10,13)(12,15)(14,16)(17,19)(18,24)(20,26)(21,27)(22,23)(25,29)(28,32)(30,31) involution — undirected(1,4,5,2)(3,6,8,7)(9,10)(11,13)(12,14)(15,16)(17,21)(18,25)(19,27)(20,28)(22,30)(23,31)(24,29)(26,32)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.