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)(19,22)(20,23)(21,26)(24,29)(25,28)(27,31)(30,32)(33,34,37,40)(35,41,43,38)(36,39,46,44)(42,48,45,47)(1,2,6,3)(4,7,12,9)(5,8,14,10)(11,15,13,16)(17,18,22,19)(20,25,28,23)(21,24,29,26)(27,31,32,30)(33,34)(35,38)(36,44)(37,40)(39,46)(41,43)(42,48)(45,47)(18,19)(23,25)(24,26)(30,31)(33,35,37,43)(34,38,40,41)(36,42,46,45)(39,47,44,48)(1,3,6,2)(4,7,12,9)(5,10,14,8)(11,15,13,16)(17,19,22,18)(20,25,28,23)(21,26,29,24)(27,31,32,30)(33,35)(34,38)(36,45)(37,43)(39,48)(40,41)(42,46)(44,47)(1,4,6,12)(2,7,3,9)(5,13,14,11)(8,16,10,15)(17,20)(18,23)(19,25)(21,27)(22,28)(24,30)(26,31)(29,32)(33,36)(34,39)(35,42)(37,46)(38,47)(40,44)(41,48)(43,45)(1,5,6,14)(2,8,3,10)(4,11,12,13)(7,15,9,16)(17,21)(18,24)(19,26)(20,27)(22,29)(23,30)(25,31)(28,32)(33,34)(35,38)(36,44)(37,40)(39,46)(41,43)(42,48)(45,47)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.