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