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