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