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