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