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