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