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