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