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