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