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