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