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