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