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