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