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