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