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