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