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