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