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