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