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