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