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