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