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