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)(18,25)(19,28)(21,24)(23,36)(26,41)(27,44)(29,46)(30,48)(31,47)(33,40)(34,35)(37,38)(39,42)(43,45) involution — undirected(1,3)(2,6)(4,10)(5,11)(7,13)(8,9)(12,16)(14,15)(17,18,22,25)(19,26,31,39)(20,21,32,24)(23,27,35,40)(28,42,47,41)(29,30,43,38)(33,34,44,36)(37,45,48,46)(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(17,19,22,31)(18,26,25,39)(20,29,32,43)(21,30,24,38)(23,37,35,48)(27,45,40,46)(28,34,47,36)(33,42,44,41)(3,11)(6,9)(10,16)(13,15)(17,20)(18,21)(19,29)(22,32)(23,33)(24,25)(26,30)(27,34)(28,46)(31,43)(35,44)(36,40)(37,42)(38,39)(41,48)(45,47) involution — undirected(2,8)(6,9)(7,14)(13,15)(17,21,22,24)(18,20,25,32)(19,30,31,38)(23,34,35,36)(26,29,39,43)(27,33,40,44)(28,37,47,48)(41,45,42,46)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.