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