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