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