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