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