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