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)(25,32)(26,34)(31,44)(33,45)(35,42)(36,40)(37,41)(38,43)(39,48)(46,47) involution — undirected(1,2)(3,6)(4,7)(5,8)(9,13)(10,12)(11,14)(15,16)(18,24)(20,34)(21,22)(25,39)(26,28)(27,40)(29,41)(30,44)(31,47)(32,38)(35,48)(36,37)(42,45)(43,46) involution — undirected(1,3)(2,6)(4,9)(5,10)(7,13)(8,12)(11,15)(14,16)(17,19,23,33)(18,25,29,43)(20,35,37,31)(21,38,22,32)(24,39,41,46)(26,44,40,42)(27,45,28,30)(34,48,36,47)(1,4,5,11)(2,7,8,14)(3,9,10,15)(6,13,12,16)(17,20,21,36,23,37,22,34)(18,26,27,41,29,40,28,24)(19,31,38,48,33,35,32,47)(25,42,45,39,43,44,30,46)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.