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