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