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)(17,18,23,28)(19,26,21,24)(20,25,31,30)(22,27,32,29)(35,42)(37,40)(43,48)(45,47)(1,3)(2,7)(4,10)(5,9)(6,11)(8,12)(13,16)(14,15)(17,19,23,21)(18,24,28,26)(20,27,31,29)(22,30,32,25)(33,34,39,38)(35,40,42,37)(36,44,46,41)(43,45,48,47)(2,8)(3,11)(9,13)(10,15)(17,19,23,21)(18,24,28,26)(20,27,31,29)(22,30,32,25)(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)(17,20,23,31)(18,25,28,30)(19,29,21,27)(22,24,32,26)(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)(17,21,23,19)(18,26,28,24)(20,27,31,29)(22,30,32,25)(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)(17,22)(18,27)(19,30)(20,26)(21,25)(23,32)(24,31)(28,29)(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.