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