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