One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10)(4,8)(5,14)(6,9)(7,12)(11,16)(13,15)(17,18,23,28)(19,24,29,40)(20,31,33,47)(21,36,38,48)(22,39,37,27)(25,41,42,34)(26,43,44,32)(30,46,45,35)(1,3)(2,7)(4,11)(5,13)(6,12)(8,15)(9,10)(14,16)(17,19,23,29)(18,24,28,40)(20,26,33,44)(21,30,38,45)(22,25,37,42)(27,34,39,41)(31,43,47,32)(35,36,46,48)(1,4,6,5)(2,8,9,14)(3,11,12,13)(7,15,10,16)(17,20,32,40,22,35,38,41,23,33,43,24,37,46,21,34)(18,25,36,45,27,29,44,47,28,42,48,30,39,19,26,31)(3,12)(7,10)(11,13)(15,16) involution — undirected(1,5,6,4)(2,8,9,14)(3,13,12,11)(7,15,10,16)(19,29)(20,33)(24,40)(25,42)(30,45)(31,47)(34,41)(35,46)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.