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