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