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