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