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