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