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