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