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