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