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