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