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