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