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