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