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