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