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