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