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