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