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