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