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