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