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