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