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