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