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