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