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