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