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