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