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