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