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