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