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