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