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