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