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