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