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