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