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